Canon ImageCLASS MF4690 Service Manual - page 152
Chapter 14
14-12
14.3.11.2 Detailed Discussions of Bit 0
0016-2029
Select whether to use the V.8 protocol when calling. If NO is selected, the V.8 protocol is inhibited at calling and the V.21 protocol is used.
14.3.11.3 Detailed Discussions of Bit 1
0016-2030
Select whether to use the V.8 protocol when called. If NO is selected, the V8 protocol is inhibited when called and the V.21 protocol is used.
14.3.11.4 Detailed Discussions of Bit 2
0016-2031
If ANSam signal is not received during transmission, select whether to use the V.8 protocol when the other fax machine declares the V.8 protocol in DIS signal. If
NO is selected, the CI signal is not transmitted and the V.8 protocol is not used even if the DIS that specifies the V.8 protocol is received.
The V.8 late start is not executed during manual transmission regardless of this setting.
14.3.11.5 Detailed Discussions of Bit 3
0016-2032
Select whether to declare the V.8 protocol in DIS signal for reception. If NO is selected, the V.8 protocol cannot be used because it is not declared in DIS signal.
The V.8 late start is not executed during manual reception regardless of this setting.
14.3.11.6 Detailed Discussions of Bit 4
0016-2033
Select whether the receiver falls back during V.34 reception. If 'Prohibit' is selected, the receiver does not fall back.
14.3.11.7 Detailed Discussions of Bit 5
0016-2034
Select whether the transmitter falls beck during V.34 transmission. If 'Prohibit' is selected, teh transmitter does not fall back.
14.3.12 SSSW-SW30
14.3.12.1 List of Functions
0016-2035
T-14-14
14.3.12.2 Detailed Discussions of Bit 5
0016-2036
When "Detect with the new method" is selected, tone is detected for 3.5 seconds before call origination in order to discriminate between dial tone and voice. If dial
tone is detected and the time since line seizure is 3.5 seconds or longer, call origination takes place immediately. If the time since line seizure is less than 3.5 seconds,
call origination takes place after waiting for 1 second. (If the time since line seizure reaches 3.5 seconds during the 1-second waiting period, call origination takes
place immediately. By default, "Detect with a new method" is assigned for this SW.
14.4 Menu Switch Settings (MENU)
14.4.1 Menu Switch Composition
0016-2042
T-14-15
5
V.34 transmission fallback
Prohibited
Not prohibited
6
not used
-
-
7
not used
-
-
Bit
Function
1
0
0
Not used
-
-
1
Not used
-
-
2
Not used
-
-
3
Not used
-
-
4
Not used
-
-
5
New dial tone detection method
Detect with the new
method.
Detect with the
existing method.
6
Not used
-
-
7
Not used
-
-
No.
Function
Range of settings
005
NL equalizer
1: ON, 0: OFF
006
telephone line monitor
0:DIAL, 1:SERVICEMAN1, 2:SERVICEMAN2, 3:OFF
007
transmission level (ATT)
from 0 to 15 (ex: 15= -15 dBm)
008
V.34 modulation speed upper
limit
0:3429, 1:3200, 2:3000, 3:2800, 4:2743, 5:2400
009
V34 data speed upper limit
0:33.6 kbps, 1:31.2 kbps, 2:28.8 kbps, 3:26.4 kbps, 4:24.0 kbps,
5:21.6 kbps, 6:19.2 kbps, 7:16.8 kbps, 8:14.4 kbps, 9:12.0 kbps,
10:9.6 kbps, 11:7.2 kbps, 12:4.8 kbps, 13:2.4 kbps
010
Frequency of pseudoring signal
0:50 Hz, 1:25 Hz, 2:17 Hz, 3:20 Hz
Bit
Function
1
0